Combinative Diamond Jewelry and Making Method Thereof

ABSTRACT

The invention discloses a combinative diamond jewelry, which includes: a metal supporting base on an upper surface edge of which a plurality of metal claws, each metal claw having a carving formed on its top surface; and a plurality of small sized diamonds inlaid between the upper surface of the supporting base and metal claws. Also disclosed is a method for making the same. Said major diamond, periphery diamonds and bottom diamonds are pressed with each other and secured onto the upper surface of the supporting base, and form together with the metal claws structure identical to each cutting edge angle of the diamond. No slot is formed among the diamonds of the jewelry and therefore, dust is prevented from coming into the interior of the jewelry, thus overcoming drawbacks of prior art combinative diamond jewelry. Furthermore entire shining visual effects are obtained by mutual refraction of these small diamonds and metal part according to specific size ratio of the small diamonds to metal part and shape design.

FIELD OF THE INVENTION

The present invention relates to technology of making diamond jewelryand more particularly, to a combinative diamond jewelry and makingmethod thereof.

BACKGROUND OF THE INVENTION

With rapid exhaustion of diamond resource, price of diamond of largesize is becoming increasingly expensive. In field of jewelry, it isdifficult for a normal consumer to buy jewelry inlaid with diamondhaving weight of more than 1 ct (carat). Though small-sized diamond hasa low price, a general consumer likes diamond of large size.

In recent years, in order for a general consumer to get with low pricejewelry having effect of large-sized diamond, technicians of diamondjewelry fabrication have developed kinds of diamond combining techniquesfor simulating effect of large sized diamond using some small sizeddiamond.

For example, Chinese Patent No.: CN200710076738.6 has disclosed modularinsertion diamond jewelry. According to this disclosure, a noble metalbase having a conic bottom surface is provided. A plurality of diamondbores is defined in a top surface of the base for locating diamonds. Inaddition, a clamping protrusion is disposed between the diamond boresformed along the periphery of the noble metal base. Said clampingprotrusion is of a triangle which is wider along a radial outwarddirection. The diamonds placed along the periphery of the noble metalbase jointly push a diamond located at the center of the base. Moreover,the periphery of the noble metal base is flush with periphery diamond.The multiple diamonds and noble metal base in their entirety look like asingle diamond of large size.

In another example, Chinese Patent No.: CN201210034500.8 describes anice flower cut diamond of “one in six” type. According to thisreference, it includes nine steps of: metal reverse molding, finishing,coloring, diamond setting, edge shovel, manual knurling, polishing,plating, and quality control. The metal construction is of a smallcylindrical construction. Both top and bottom layers are inclinedinwardly and, their angle is designed to be consistent with the angel atwhich facets of the diamond is cut. Using three-layered circular drillstacking technique, the small diamonds are placed into all locations onthe metal bottom layer where no metal is presented. Furthermore, manualknurling is performed on a table triangular metal claw location forincreasing refraction and bringing an effect of a large sized diamond bythe entire table surface.

Though above patents and prior art have realized effect of a large sizeddiamond using several small sized diamonds, these techniques suffer fromthe following problems.

At first, to hold these small diamonds in place stably so as to preventfalling of them, metal retention means is mainly used to mount a centraldiamond surrounded by several small diamonds. This construction however,results in existence of gaps between the central diamond and smalldiamonds. During wearing processing, dust and dirt will come into thegaps over time, thus making it difficult to clean the gaps andinfluencing using of the diamond jewelry.

Secondly, neither of the above prior art techniques is able to designsize of the small diamond contained in this combinative diamond andangle of the circular base support based on cutting angle of truediamond. It is impossible to form entire shining visual effects bymutual refraction of these small diamonds according to specific sizeratio of the small diamonds to metal part and shape design. As such,there is certain difference between it and true large sized diamond interms of shape and visual effect.

SUMMARY OF THE INVENTION

The present invention proposes a combinative diamond jewelry. No slot isformed among the diamonds of the jewelry and therefore, dust isprevented from coming into the interior of the jewelry, thus overcomingdrawbacks of prior art combinative diamond jewelry. Furthermore entireshining visual effects are obtained by mutual refraction of these smalldiamonds and metal part according to specific size ratio of the smalldiamonds to metal part and shape design.

To overcome above-mentioned shortcomings, there is provided acombinative diamond jewelry including: a metal supporting base on anupper surface edge of which a plurality of metal claws, each metal clawhaving a carving formed on its top surface; and a plurality of smallsized diamonds inlaid between the upper surface of the supporting baseand metal claws, wherein at least a large inlay opening and severalintermediate inlay openings and small inlay openings are disposed on theupper surface of the supporting base;

said small sized diamond comprises: at least a major diamond and severalbottom diamonds and periphery diamonds;

said several bottom diamonds are inlaid into small inlay openings in aslot of the upper surface of the supporting base and locate under theperiphery diamonds;

said periphery diamonds are inlaid into intermediate inlay openings nextto adjacent bottom diamonds and are pressed against and secured with thebottom diamonds;

said major is inlaid into the large opening and is pressed against ansecured with the several periphery diamonds;

said major diamond, periphery diamonds and bottom diamonds are pressedwith each other and secured onto the upper surface of the supportingbase, and form together with the metal claws structure identical to eachcutting edge angle of the diamond.

Preferably, the major diamond, bottom diamonds and periphery diamondsare inlaid into the upper surface of the supporting base by any one ormore of nail inlaying, forced inlaying or claw inlaying.

Preferably, the cross section of the supporting base is of a circle; alarge inlay opening, intermediate inlay opening and several cylinderslocated concentrically around the large inlay opening are disposed onthe upper surface of the supporting base; and said bottom diamonds aresecured among these small cylinders by nail inlaying.

Preferably, the cross section of the supporting base is of a heart; twoadditional small cylinders with the height identical to that of themetal claws are disposed on the upper surface of the supporting base;and the bottom diamonds are mounted into the small inlay openings bycombination of nail inlaying and forced inlaying.

Preferably, the cross section of the supporting base is of an ellipse,water drop, pyriform or octagon.

Preferably, the upper width of the supporting base is 6.5 mm, while thelower width thereof is 6.1 mm; the angle between the side surface andupper surface of the supporting bases is 30°, while the angle betweenthe side surface and bottom surface is 60°.

Preferably, the diameter of the bottom diamonds is in a range of 0.80mm-0.90 mm; the diameter of the major diamond is within 2.30 mm-2.40 mm;and the diameter of the periphery diamonds is within 1.35 mm-1.45 mm.

Preferably, the inclination angle of the upper surface of the metalclaws is identical to that of the diamond cutting surface inclinationangle.

According to the present invention, a method for making a combinativediamond jewelry as recited in claim 1, includes the steps of:

(1) sample making; (2) reverse molding; (3) finishing; (4) polishing;(5) diamond setting; (6) welding; (7) polishing; (8) plating, wherein:

the step (5) further comprises the steps of:

(1) inlaying the bottom diamonds into the small inlay openings to fill abottom layer of a supporting base;

(2) inlaying the periphery diamonds into the intermediate inlay openingsadjacent to the large inlay opening, and securing the periphery diamondstogether with the bottom diamonds;

(3) inlaying the major diamond into the large inlay opening, andsecuring the major diamond together with the adjacent peripherydiamonds;

(4) inlaying the rest periphery diamonds into the rest intermediateinlay openings respectively and securing and pressing the major diamond;

(5) each metal claw being craved with an angle of 90° such that themetal claw, side surface of the supporting base, major diamond andperiphery diamonds form together each refraction face of the diamond;

(6) performing plating or rhodium plating to the supporting base andmetal claws to further improve metal blare, thus improving blare andreflectivity;

plating of said step (8) further comprise the steps of:

{circle around (1)} prepare plating white solution

Take 30 ml rhodium solution using a measuring cup and add this solutioninto a rhodium plating container and evenly stir the solution; afteraddition of rhodium solution, ultra-sonic vibration for 30 seconds isrequired such that the final solution is uniform. Switch on ultra-soniccleaning machine dedicated to rhodium solution. After vibration, switchoff the machine.

{circle around (2)} Plating

a. Add water into the ultra-sonic cleaning groove such that water levelis 1.5-2.5 cm lower than the ultra-sonic cleaning machine edge afteraddition of plating solution into the container;

b. Switch on ultra-sonic cleaning machine such that the temperature is45° C., and the ultra-sonic cleaning machine begins heating.

c. Plating is conducted when the temperature meter indicates thetemperature within a range of 45±3° C. During plating, voltage is from3V to 5V and duration is 25-30 s.

{circle around (3)} Cleaning

After finishing of the plating, the product is taken out of thesolution. The electrode clamps are released to get the product out andthen the product is washed using clean water.

The small inlay openings are small cylinders; and the bottom diamondsare inlaid between small cylinders by means of nail inlaying.

Said major diamond, periphery diamonds and bottom diamonds are pressedwith each other and secured onto the upper surface of the supportingbase, and form together with the metal claws structure identical to eachcutting edge angle of the diamond. No slot is formed among the diamondsof the jewelry and therefore, dust is prevented from coming into theinterior of the jewelry, thus overcoming drawbacks of prior artcombinative diamond jewelry. Furthermore entire shining visual effectsare obtained by mutual refraction of these small diamonds and metal partaccording to specific size ratio of the small diamonds to metal part andshape design.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a top plan view of a first embodiment of the invention;

FIG. 2 shows a cross-sectional view of a supporting base of FIG. 1;

FIG. 3 shows an exploded perspective view of FIG. 1;

FIG. 4 shows a top plan view of a second embodiment of the invention;

FIG. 5 shows a cross-sectional view of a supporting base of FIG. 4; and

FIG. 6 shows an exploded perspective view of FIG. 4.

Here, 1 represents a supporting base, 2 represents a bottom diamond, 3represents a periphery diamond, 4 represents a major diamond, 5represents a small cylinder, 6 represents a small inlay opening, 61denotes an intermediate inlay opening, 7 denotes a large inlay opening,8 denotes a metal claw, and 9 denotes a carving.

DETAILED DESCRIPTION OF THE INVENTION

Preferred embodiments of the instant invention are described in greatdetail in conjunction with accompanied drawings. It should be understoodthat these embodiments are only for illustrating spirit of the inventionbut not for limiting scope of the invention. In addition, it should alsobe understood that after reading description of the invention, person ofthe art may make various changes or modifications to the currentinvention and, these changes or modifications should also fall withinscope of the invention as defined by appended claims.

First Embodiment

As shown in FIGS. 1-3, combinative diamond jewelry of the presentinvention includes a noble metal supporting base 1 of circular crosssection. A side surface of the supporting base 1 is machined accordingto side structure of large sized diamond, thus effectively enhancingshape simulation of large sized true diamond.

A large inlay opening 7 is defined in a central location of thesupporting base 1. Six intermediate inlay openings 61 are evenly definedcircumferentially and around the large inlay opening 7. In other words,centers of the six intermediate inlay openings 61 locate on a samecircle. In addition, twelve small cylinders 5 are evenly andcircumferentially distributed around the large inlay opening 7. Everytwo small cylinders 5 are categorized as a group and therefore there aretotally six groups of small cylinders 5. A metal claw 8 with specificrefraction angle is disposed between two adjacent intermediate inlayopenings 61. Each metal claw 8 is craved with a preferred angle of 90°.

In this embodiment, the inlaying process of the combinative diamondjewelry includes the following steps.

Firstly, six small sized bottom diamonds 2 are inserted into a slotdefined between two adjacent small cylinders 5 of six groups; next, anail is formed on each small cylinder 5 and, the six small sized bottomdiamonds 2 are secured in place by the nails. The six small sized bottomdiamonds 2 overlay the remained metal region of the bottom layer of thesupporting base 1.

Secondly, any two small sized periphery diamonds 3 located diagonallyare imbedded into an intermediate inlay opening 61 located between twoadjacent metal claws 8. In addition, each periphery diamond 3 is pressedagainst two adjacent bottom diamonds 2 and secured with them.

Thirdly, a small sized major diamond 4 is inlaid into the large inlayopening 7. Meanwhile, the major diamond 4 is pressed against two smallsized periphery diamonds 3 diagonally located so that they are securedtogether tightly. As the major diamond 4 inlaid into the center of thelarge inlay opening 7 of the supporting base 1 is just contacted withsix small sized bottom diamonds 6 located underneath the diamond 4, nospace will be defined between the upper major diamond 4 and lower bottomdiamonds 2, thereby preventing dust from entering into interior of thejewelry.

Fourthly, the remained four small sized periphery diamonds 3 are held inplace through corresponding metal claws 8 and also tightly press thecentral major diamond 4, hence preventing dust from entering intointerior of the combinative diamond.

Fifthly, six metal claws 8 are carved to get carving 9 with specificangle, and are inlaid with the side surface of the supporting base 1 andby cooperation with the diamonds on the supporting base 1, refractionangle by which an entire diamond is cut is obtained, thus improvingappearance of the entire combinative diamond.

Sixthly, metal region of the jewelry is plated using plating or rhodiumplating method so as to further improve metal blare, thus improvingblare of the entire jewelry.

Second Embodiment

As shown in FIGS. 4-6, combinative diamond jewelry of the presentinvention includes a noble metal supporting base 1 of heart crosssection. A side surface of the supporting base 1 is machined accordingto side structure of large sized diamond, thus effectively enhancingshape simulation of large sized true diamond.

Twelve metal claws 8 are distributed around the supporting base 1. Amongthese metal claws, two metal claws 8 located on a tip portion of theheart shape are combined to form a unity, and the rest metal claws 8 areuniformly arranged such that an identical angle is defined between twoadjacent claws 8. An intermediate inlay opening 61 is disposed betweenevery two adjacent metal claws 8. At half and one fourth locations of asymmetrical line of the supporting base 1 small cylinders 5 are disposedrespectively. The height of the small cylinders 5 is identical to thatof the metal claws 8. Carvings are formed on the top of each cylinder 5,and the carvings are preferably divided into eight identical portions.The preferred carving angle is 90°. Around the small cylinder 5 locatedat half position of the symmetrical line of the supporting base 1, threelarge inlay openings 7 are disposed so that an equilateral triangle isdefined among these openings 7. In a recessed portion of the hear shapeof the supporting base 1, two small inlay openings 6 are definedsymmetrically about the same small cylinder 5. At two sides of the largeinlay opening 7 of the tip portion of the heart shape, two small inlayopenings are defined symmetrically about the same small cylinder 5. Theabove four small inlay openings 6 form together an equilateraltrapezoid, and four openings 6 locate on four corns of the trapezoidrespectively.

In this embodiment, the inlaying process of the combinative diamondjewelry includes the following steps.

At first, four small sized bottom diamonds 2 are inlaid into spacesdefined among four small inlay openings 6. Among these bottom diamonds2, two bottom diamonds 2 close to the small cylinder 5 are held in placeby forming a nail on the small cylinder 5 and are secured onto thecylinder 5 by said nail. The four small sized bottom diamonds 2 overlaythe remained metal region of the bottom layer of the supporting base 1.

Secondly, six small sized periphery diamonds 3 are imbedded into anintermediate inlay opening 61 located between two adjacent metal claws8. In addition, each periphery diamond 3 is pressed against two adjacentbottom diamonds 2 and secured with them.

Thirdly, three small sized major diamonds 4 are inlaid into the largeinlay opening 7. The major diamond 4, peripheral small sized peripherydiamonds 3, bottom diamonds 2 and small cylinders 5 are pressed againsteach other such that they are secured strongly. As the major diamond 4inlaid into the center of the large inlay opening 7 of the supportingbase 1 is just contacted with two small sized bottom diamonds 6 locatedunderneath the diamond 4, no space will be defined between the uppermajor diamond 4 and lower bottom diamonds 2, thereby preventing dustfrom entering into interior of the jewelry.

Fourthly, the remained four small sized periphery diamonds 3 are held inplace through corresponding metal claws 8 and also tightly press thecentral major diamond 4, hence preventing dust from entering intointerior of the combinative diamond.

Fifthly, twelve metal claws 8 are carved to get carving 9 with specificangle, and are inlaid with the side surface of the supporting base 1 andby cooperation with the diamonds on the supporting base 1, refractionangle by which an entire diamond is cut is obtained, thus improvingappearance of the entire combinative diamond.

Sixthly, metal region of the jewelry is plated using plating or rhodiumplating method so as to further improve metal blare, thus improvingblare of the entire jewelry.

Alternatively, the cross section of the supporting base 1 may also takethe shape of water drop, ellipse, pyriform, pentagon and so on.

In above illustrated embodiments of the invention, the followingpreferred parameters may be utilized.

The size of the small sized bottom diamond 2 is 0.85 mm, and is within atolerance range of ±0.05 mm.

The size of the small sized major diamond 4 is 2.35 mm, and is within atolerance range of ±0.05 mm.

The size of the small sized periphery diamond 3 is 1.4 mm, and is withina tolerance range of ±0.05 mm.

The upper width of the supporting base 1 is 6.5 mm, while the lowerwidth thereof is 6.1 mm. The angle between the side surface and topsurface of the supporting bases 1 is 30°, while the angle between theside surface and bottom surface is 60°, thus forming inclination angleidentical to that of a true diamond. The height between the uppermostlocation of the top surface of the metal claw and bottom surface of thesupporting base 1 is 3 mm. The height between the lowermost location ofthe top surface of the claw and bottom surface of the base 1 is 2.4 mm,thus also forming inclination angle identical to that of a true diamond.The carving angle of the top surface of the metal claw is 90°, herebyobtaining reflective effects of true diamond.

The making method of the combinative diamond jewelry of the inventionincludes the following steps.

(1) Sample making: A metal member corresponding to style of the jewelryis made using silver supported wax product and grinding tool.Corresponding metal base is prepared based on inlay manner of thediamond, size of the diamond to be embedded into the metal base isdetermined, and location of the diamond mounting is specified.

(2) Reverse molding: Gold/platinum solution is poured into a mold, andafter cooling the mold is disassembled, thus manufacturing directly ametal jewelry from the wax product.

(3) Finishing: Finish the metal jewelry to form semi-manufacturedproduct with slim lines, crisp angle and integrity.

(4) Polishing: Polish the finished metal base to bring metal blare ofthe jewelry.

(5) Diamond setting: Put a diamond into a predefined location on themetal base; provide a metal wire over the diamond or metal block underthe diamond; a seam is defined between the metal wire over the surfaceof the diamond and surface; and seam is also defined between the metalbase and diamond surface and between the diamond and groove of the metalbase.

(6) Welding: Weld the metal wire over the diamond or metal block underthe diamond with the metal base together.

(7) Polish: after welding process, polishing is performed again to theentire metal base.

(8) Plating: A plating process is performed to the diamond jewelry aftersetting. The plating process includes the following steps.

{circle around (1)} Prepare plating white solution

Take 30 ml rhodium solution using a measuring cup and add this solutioninto a rhodium plating container and evenly stir the solution; afteraddition of rhodium solution, ultra-sonic vibration for 30 seconds isrequired such that the final solution is uniform. Switch on ultra-soniccleaning machine dedicated to rhodium solution. After vibration, switchoff the machine.

{circle around (2)} Plating

a. Add water into the ultra-sonic cleaning groove such that water levelis 1.5-2.5 cm lower than the ultra-sonic cleaning machine edge afteraddition of plating solution into the container;

b. Switch on ultra-sonic cleaning machine such that the temperature is45° C., and the ultra-sonic cleaning machine begins heating.

c. Plating is conducted when the temperature meter indicates thetemperature within a range of 45±3° C. During plating, voltage is from3V to 5V and duration is 25-30 s.

{circle around (3)} Cleaning

After finishing of the plating, the product is taken out of thesolution. The electrode clamps are released to get the product out andthen the product is washed using clean water.

Finally, it is emphasized that the above description is only forpreferred embodiments of the invention but not to limit the scope of theinvention. Any equivalent of or modification upon the invention arewithin the scope of the invention.

1. A combinative diamond jewelry, comprising: a metal supporting base onan upper surface edge of which a plurality of metal claws, each metalclaw having a carving formed on its top surface; and a plurality ofsmall sized diamonds inlaid between the upper surface of the supportingbase and metal claws, wherein at least a large inlay opening and severalintermediate inlay openings and small inlay openings are disposed on theupper surface of the supporting base; said small sized diamondcomprises: at least a major diamond and several bottom diamonds andperiphery diamonds; said several bottom diamonds are inlaid into smallinlay openings in a slot of the upper surface of the supporting base andlocate under the periphery diamonds; said periphery diamonds are inlaidinto intermediate inlay openings next to adjacent bottom diamonds andare pressed against and secured with the bottom diamonds; said major isinlaid into the large opening and is pressed against an secured with theseveral periphery diamonds; said major diamond, periphery diamonds andbottom diamonds are pressed with each other and secured onto the uppersurface of the supporting base, and form together with the metal clawsstructure identical to each cutting edge angle of the diamond.
 2. Thecombinative diamond jewelry as recited in claim 1, wherein the majordiamond, bottom diamonds and periphery diamonds are inlaid into theupper surface of the supporting base by any one or more of nailinlaying, forced inlaying or claw inlaying.
 3. The combinative diamondjewelry as recited in claim 1, wherein the cross section of thesupporting base is of a circle; a large inlay opening, intermediateinlay opening and several cylinders located concentrically around thelarge inlay opening are disposed on the upper surface of the supportingbase; and said bottom diamonds are secured among these small cylindersby nail inlaying.
 4. The combinative diamond jewelry as recited in claim1, wherein the cross section of the supporting base is of a heart; twoadditional small cylinders with the height identical to that of themetal claws are disposed on the upper surface of the supporting base;and the bottom diamonds are mounted into the small inlay openings bycombination of nail inlaying and forced inlaying.
 5. The combinativediamond jewelry as recited in claim 1, wherein the cross section of thesupporting base is of an ellipse, water drop, pyriform or octagon. 6.The combinative diamond jewelry as recited in claim 1, wherein the upperwidth of the supporting base is 6.5 mm, while the lower width thereof is6.1 mm; the angle between the side surface and upper surface of thesupporting bases is 30°, while the angle between the side surface andbottom surface is 60°.
 7. The combinative diamond jewelry as recited inclaim 1, wherein the diameter of the bottom diamonds is in a range of0.80 mm-0.90 mm; the diameter of the major diamond is within 2.30mm-2.40 mm; and the diameter of the periphery diamonds is within 1.35mm-1.45 mm.
 8. The combinative diamond jewelry as recited in claim 1,wherein the inclination angle of the upper surface of the metal claws isidentical to that of the diamond cutting surface inclination angle.
 9. Amethod for making a combinative diamond jewelry as recited in claim 1,comprising the steps of: (1) sample making; (2) reverse molding; (3)finishing; (4) polishing; (5) diamond setting; (6) welding; (7)polishing; (8) plating, wherein: the step (5) further comprises thesteps of: (1) inlaying the bottom diamonds into the small inlay openingsto fill a bottom layer of a supporting base; (2) inlaying the peripherydiamonds into the intermediate inlay openings adjacent to the largeinlay opening, and securing the periphery diamonds together with thebottom diamonds; (3) inlaying the major diamond into the large inlayopening, and securing the major diamond together with the adjacentperiphery diamonds; (4) inlaying the rest periphery diamonds into therest intermediate inlay openings respectively and securing and pressingthe major diamond; (5) each metal claw being craved with an angle of 90°such that the metal claw, side surface of the supporting base, majordiamond and periphery diamonds form together each refraction face of thediamond; (6) performing plating or rhodium plating to the supportingbase and metal claws to further improve metal blare, thus improvingblare and reflectivity; plating of said step (8) further comprise thesteps of: {circle around (1)} prepare plating white solution Take 30 mlrhodium solution using a measuring cup and add this solution into arhodium plating container and evenly stir the solution; after additionof rhodium solution, ultra-sonic vibration for 30 seconds is requiredsuch that the final solution is uniform. Switch on ultra-sonic cleaningmachine dedicated to rhodium solution. After vibration, switch off themachine. {circle around (2)} Plating a. Add water into the ultra-soniccleaning groove such that water level is 1.5-2.5 cm lower than theultra-sonic cleaning machine edge after addition of plating solutioninto the container; b. Switch on ultra-sonic cleaning machine such thatthe temperature is 45° C., and the ultra-sonic cleaning machine beginsheating. c. Plating is conducted when the temperature meter indicatesthe temperature within a range of 45±3° C. During plating, voltage isfrom 3V to 5V and duration is 25-30 s. {circle around (3)} CleaningAfter finishing of the plating, the product is taken out of thesolution. The electrode clamps are released to get the product out andthen the product is washed using clean water.
 10. The method for makinga combinative diamond jewelry as recited in claim 9, wherein the smallinlay openings are small cylinders; and the bottom diamonds are inlaidbetween small cylinders by means of nail inlaying.